AD 84-25-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 767-200 Series | BOEING Model 767 Airplanes |
| aircraft | The Boeing Company | 767-300 Series | BOEING Model 767 Airplanes |
| aircraft | The Boeing Company | 767-300F Series | BOEING Model 767 Airplanes |
Unsafe Condition
Freezing of the ram air turbine (RAT) actuator motors could prevent deployment of the RAT when required.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the RAT rotary actuator electric motor P/N S258T711-3 with P/N S258T711-4, operationally test the RAT deployment system per Boeing Service Bulletin 767-29-17, Revision 2 or later FAA-approved revision. Motors may be modified to -4 configuration via EEMCO Service Bulletin 5076-29-1, Revision 1 or later FAA-approved revision.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 140 days after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 767-200 Series, 767-300 Series, 767-300F Series airplanes noted in the referenced Boeing Service Bulletin.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
RAT Actuator Motor
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_84-25-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 84-25-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Model 767 Airplanes Subject: RAT Actuator Motor Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/25/1985 Make: The Boeing Company Model: 767-200 Series | 767-300 Series | 767-300F Series Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 84-25-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4969 AD NUMBER: 84-25-03 SUBJECT HEADING: BOEING Model 767 Airplanes ACTION: SUMMARY: DATES: Effective January 25, 1985. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 84-25-03 BOEING: Amendment 39-4969. Applies to Boeing Model 767 airplanes noted in the Boeing Service Bulletin listed below. To prevent freezing of the ram air turbine (RAT) actuator motors and ensure deployment of the RAT when required, accomplish the following within 140 days after the effective date of this AD, unless already accomplished: A. Replace the RAT rotary actuator electric motor P/N S258T711-3 with motor P/N S258T711-4, and operationally test the RAT deployment system in accordance with Boeing Service Bulletin 767-29-17, Revision 2 dated June 29, 1984, or later FAA approved revision. A - 3 motor may be modified to a -4 configuration by accomplishing rework in accordance with EEMCO Service Bulletin 5076-29-1, Revision 1, dated June 25, 1984, or later FAA approved revision. B. Alternate means of compliance which provide an equivalent level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region. C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of replacements required by this AD. All persons affected by this directive who have not already received the above specified Service Bulletins from the manufacturer may obtain copies upon request to the Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124, or they may be examined at the FAA, Northwest Mountain Region, 9010 East Marginal Way South, Seattle, Washington 98108. This amendment becomes effective January 25, 1985. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_84-25-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 84-25-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Model 767 Airplanes Subject: RAT Actuator Motor Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/25/1985 Make: The Boeing Company Model: 767-200 Series | 767-300 Series | 767-300F Series Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 84-25-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4969 AD NUMBER: 84-25-03 SUBJECT HEADING: BOEING Model 767 Airplanes ACTION: SUMMARY: DATES: Effective January 25, 1985. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 84-25-03 BOEING: Amendment 39-4969. Applies to Boeing Model 767 airplanes noted in the Boeing Service Bulletin listed below. To prevent freezing of the ram air turbine (RAT) actuator motors and ensure deployment of the RAT when required, accomplish the following within 140 days after the effective date of this AD, unless already accomplished: A. Replace the RAT rotary actuator electric motor P/N S258T711-3 with motor P/N S258T711-4, and operationally test the RAT deployment system in accordance with Boeing Service Bulletin 767-29-17, Revision 2 dated June 29, 1984, or later FAA approved revision. A - 3 motor may be modified to a -4 configuration by accomplishing rework in accordance with EEMCO Service Bulletin 5076-29-1, Revision 1, dated June 25, 1984, or later FAA approved revision. B. Alternate means of compliance which provide an equivalent level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region. C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of replacements required by this AD. All persons affected by this directive who have not already received the above specified Service Bulletins from the manufacturer may obtain copies upon request to the Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124, or they may be examined at the FAA, Northwest Mountain Region, 9010 East Marginal Way South, Seattle, Washington 98108. This amendment becomes effective January 25, 1985. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.
Related Airworthiness Directives
2026-05-07
final ruleAirworthiness Directives; The Boeing Company Airplanes
Unsafe Condition: Discovery of a crack at one of the forward lower fastener holes following replacement of a cracked underwing longeron (UWL) fitting. Such cracking could result in loss in the primary load path betw...
2026-05-03 Recurring
final ruleAirworthiness Directives; The Boeing Company Airplanes
Unsafe Condition: scribe lines found at skin lap joints and butt joints, around external repairs and antennas, and at locations where external decals had been cut, which could develop into fatigue cracks in the skin...
2026-04-10 Recurring
final ruleAirworthiness Directives; The Boeing Company Airplanes
Unsafe Condition: Corrosion damage on the Model 767 satellite communications (SATCOM) high gain antenna adapter plate, which could result in parts departing the airplane (PDA). A PDA event of the SATCOM high gain an...
2025-15-08 Recurring
final ruleAirworthiness Directives; The Boeing Company Airplanes
Unsafe Condition: uncommanded fore and aft movement of the Captain's and First Officer's seats, which could cause a flight control obstruction or unintended flight control input, resulting in the loss of the ability...